Minimally invasive surgery cannot be done for perianal abscesses. There are two common surgical procedures for perianal abscess: 1, relatively simple incision, its an infectious disease, the formation of pus, in the thinnest part of the pus cavity line a radial opening, the pus out, the pus cavity after the pressure becomes smaller, the pain will be rapidly relieved. Although incision and drainage is simple, there is a risk of forming an anal fistula or recurrence of abscess.2, perianal abscess one-time radical surgery, on the basis of incision and drainage to further expand, incise the abscess cavity, find the primary internal opening, and dispose of the internal opening. Although it is more traumatic, most patients can heal in one time, and rarely form anal fistula or recurrence.